Duplicator.



T. DANHEISER & F. F. FECHER.

DUPLICATOR.

APPLICATION FILED APR.6.1915.

Patented Mar. 7, 1916.

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I 1, 174,396. Patented Mar. 7,1916.

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lijjl nflann o T. DANHEISER & F. F. FECHER. DUPLICATOR.

' APPLICATION FILED APR.6,-19|s. 1 174 396. Patented Mar. 7, 1916.

4 SHEETS-SHEET 3.

T. DANHEISER & F. F. FECHER.

DUPLICATOR.

APPLICATION FILED APR. 6, 1915.

1,174,396. Pa t ented Marl 7,1916.

4 SHEETS-SHEET 4.

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THEODORE DANHEISER AND FREDERICK FRANCIS FECHER, or NEW YORK, N. Y., ASSIGNORS TO THE srEEnoenAP-H DUPLICATO-R co.- 11m, A co-nroaa'rron or NEW YORK.

DUPLIGATOR.

Specification of Letters Patent.

Application filed April 6, 1915. Serial No. 19,419.

To all whom it may concern:

Be it known that we, THEoooRn DAN- HEISER and FREDERICK FRANCIS FECHER, citi Zens of the United States, and residents, respectively, of the borough of Manhattan, city and State of New York, and the borough of Brooklyn, city and State of New York, have invented certain new and useful,

Improvements in Duplicators, of which the following is a specification.

The invention relates to duplicators, and more particularly to the type of such'machines provided with a duplicating surface adapted to receive negative or reversed impressions and rolling means for pressing a sheet of paper or the like'thereupon.

The invention has for one of its principal objects to provide a machine in which the operation of placing the paper in contact with the surface, taking the impression, and removing the paper, may be performed efficiently, quickly and easily. The invention consists in the novel construction, arrangement and combination of various devices, elements and parts as shown in the accompanying drawings, and hereinafter more particularly described.

In the said drawings, Figure 1 is a side elevation of a duplicator constructed accordmg to our invention; Fig. 2 is a plan view thereof; Figs. 3, 4 and 5 and 5 are detail views onan enlarged scale, hereinafter more particularly described; Fig. 6 is an elevation of the end shown at the left in Fig. 1; Fig.

'7 is an elevation of the end shown at the right in Fig. 1; and Fig. 8 is a vertical longitudinal section taken 11 the line 88 of Fig. 2, and looking in t e direction-of the arrows. 4

In carrving our invention into effect in the embodiment thereof which we have selected for illustration in the accompanving drawings and description in this specification. we provide a base member 11. Secured to this base member is a frame member 12, the shape of which may readilyv be comprehended bv an inspection of the various figures of the drawings. The frame 12 comprises the side portions each having two pedestals and a connecting portion. as shown in Figs. 1 and 8. and a horizontal bed-portion 13 preferably integral with the side portions and connecting them throughout immediate support for the portion of the duplicating medium which is in use. The bed may be covered with a-strip of canvas or the like. 14 (see Fig. 8) which extends over its upper surface and around both ends, the extremity being joined together under the'bed 13', and the strip held taut, by means of metal members 15, joined together by tlghtening'screws 16. 4

The duplicating medium used is in the form of a strip or roll 19. The portion in use is stretched over the canvas 14 on the bed 13, while the end portions after passing over rollers 17 adapted to prevent friction of the same against the ends of the bed 13,

construction, now to be described. The con .Patented Mar. 7, 1916.

struction of these rollers is shown indetail in Figs.- 3 and 4. One end of the roller,

shown in Fig. 3, is provided with a longitudinally'extensible pin 20, normally held in its extended position by means of a helical spring 21, but capable of being pressed inward against this spring. When the roller is in place this pin fits in a socket 22 in the frame 12, which socket is provided with a sliding member 23 capable of sliding into or out of said socket, but provided with enlarged ends in order that it may not slide entirely out and becomelost.

The other end of the roller, shown in Fig. 4, is provided with a flattened pin 24, en-

gaging with a squared rotatable socket 25 mounted in the frame and bearing at its outer extremity a ratchet 26 and a handle 27, (see Fig. 1) by which it may be rotated.

The ratchet 26 is engaged by a pawl 28,

pivoted at 29. The other end of the pawl may be either allowed to engage with the ratchet, or held out of engagement therewith, by means of any suitable device, as for instance. that shown in Figs. 5 and 5. A screw 30 is secured in the frame 12, said screw having rotatably secured thereon a cam member 31. This cam member isprovided with projections 32, adapted to fit in recesses in the frame 12, and is held close to said frame 12 by a spring 33 acting between it and the head of the screw 30.

Mounted between the sides of the-frame 12 is a shaft 34 bearing fingers 35, to the outer ends of which is secured a cross-bar 51. Also mounted between the sides of the frame 12 is a stop 36. formed from a longitudinally bent strip of sheet-metal. Springs 37 may be provided for the purpose of acting upon the shaft 34 to keep the cross-bar 51 nor mally against the stop 36. Theshaft 34 may be provided with a pin fast thereto, adapted to be operated by a finger on the movable frame or carriage hereafter described.

Referring now to Figs. 1 and 6 it will be seen that in each side of the frame, near the top, is a groove 38. Slidably secured in these grooves is a movable frame or carriage, comprising side members 39, a handle 40, an impression roller 41, by which the frame rests on the bed 13, a paper-guide 42, provided with a sliding member 43, and a guideroller 44 for the paper when inserted. The paper is designated 50. This frame is also provided with rollers 45 running in the groove 38, and a stop 46, inserted in one of the sockets 47 serves to prevent the frame from sliding farther than is desired, and

may have a finger 61 adapted to engage with the pin 60 and move back the cross-bar 51.

The assembling and operation of a duplicator embodying our invention is as follows: The canvas 14 is adjusted upon the bed 13, and stretched tightly by means of the screws 16. The end of a strip of duplicating material 19 is suitably secured to one of the rollers 18, wound thereupon, and the other end secured to the other roller 18. These rollers are inserted by placing the flattened pin 24 in the squared socket 25, pushing in the spring pin 20, and then moving the end of the roller containing this spring pin into position, when the pin 20 will spring out- Ward into the socket 22, displacing the pin 23. When it is desired toremove the roller 18, the pin 23 is pressed inward, forcing the pin 20 out of the socket 22, and the roller may be slid from the frame 12, as will be readily understood. The strip of duplieating medium should pass over the bed 13 and rollers 17. It is tightened by turning the cranks 27, moving the ratchets 26, which are engaged by the pawls 28. These pawls may be placed either into or out of engagement with the ratchets 26 by turning the cam 31. One of the pawls is held out of engagement when it is desired to roll the duplicating medium from one roller to the other for the purpose of exposing a fresh portion for use. The duplicating medium being properly in position, a negative or reversed impression of the matter which it is desired to copy, may be transferred thereto in the usual manner.

A sheet of paper 50 on which it is desired to make a copy is placed in position. This paper is slid down over the guide 42, (the sliding member 43 being adjusted as desired) over the roller 44, and against the stop 36. The movable frame or carriage in this operation should be pushed as far as possiblev to the right of Figs. 1 and 8, in

which position, it will be observed, it is beyond the end of the bed 13, and as shown in Fig. 8, the roller 41- will begin to bear against the cross-bar 51 'on the fingers 3.3 and to move the same out of engagement with the stop 36, though if desired the apparatus may be so adjusted as to permit the operation to be performed by the action of the finger 61 on the pin 60. The paper being placed in this position, the movable frame is then slid toward the left by means of the handle 40. The first result is to release the cross-bar held by the fingers 35, which descends upon the stop 36 and securely clamps the paper. As the movement is continued, more and more of the paper is drawn over the guide'42 and roller 44 and into contact with the duplicating medium, until nearly every part successively receives the pressure of the roller 41, this movement being continued until the movable frame strikes a stop, properly placed in one of the perforations 47, which should be in such a position that the paper may'not be drawn entirely through the movable frame, the end of the paper being held by the operators hand. The frame is then moved back to the right, the roller 41 passes again over that part of the paper which is in contact with the duplicating medium, and more and more paper is successively stripped from the duplicating medium and slid out of the movable frame over the roller 44 and guide 42. When the movable frame reaches its extreme right position, the cross-bar 51 is forced away from the guide 36, whereby the end of the paper is released, and the fin ished copy may be withdrawn. A new sheet of paper is then placed in position, and the operation repeated. In this manner as many copies as desired may be taken, and the handle 27 may then be operated so as to bring into position a fresh. portion of the duplieating strip adapted to receive a new negative impression.

The advantages of our invention will be obvious fro-m what has been said above concerning its construction and mode of operation, but some of them may be enumerated as follows: Owing to the elimination of unnecessary parts the apparatus is simple and inexpensive, while still eflicient in operation; it is capable of rapid operation; the rollers do not come in contact with each other at any time; the duplicating medium may be easily and quickly unwound and rewound, and new rolls of the same substituted when necessary.

Having thus described our invention what we claim as new and desire to secure by Letters Patent is as follows:

1. In a duplicator, the combination with a frame having a bed, "and a duplicating film thereon; of a carriage slidably mounted on said frame provided with a roller adapted to depress a sheet of paper or the like on to said duplicating film and with a roller adapted to strip said paper from said film; and a clamp on said frame and adjacent one end of said bed adapted to hold said paper. 7

2. In a duplicator, the combination with a frame having a bed, and a duplicating film thereon; of a carriage slidably mounted on said frame provided with a roller adapt ed to depress a sheetof paper or the like on to said duplicating film and with a roller adapted to strip said paper from said film, and a clamp onsaid frame and adjacent one end of said bed adapted to hold said paper and to be released therefrom by said carriage. s

3. In a duplicator, the combination with a frame havinga bed, and a duplicating film thereon; of a carriage slidably mounted on said frame provided with a roller adapted to move over said bed and depress a sheet of paper or the like on to said duplicating film, and adapted to pass to a position beyond the end of said bed, thereby leaving a space between an end of said bed and said roller into which may be inserted the end of a sheet of paper or the like and to begin its impression stroke from said position and also provided with a roller adapted to strip said paper from said film.

4. In a duplicator, the combination with a frame having a bed, and a duplicating film thereon; of a carriage slidably mounted on said frame, a clamp movably secured to said frame adjacent one end of said bed adapted to hold a sheet of paper or the like, a roller journaled in said carriage adapted to move over said bed and depress a sheet of paper or the like on to said duplicating film, and

to pass beyond the end of said bed, thereby leaving a space between an end of said bed and said roller into which may be inserted the end'of a sheet of paper or the like, and a second roller: journaled'in said carriage gpd adapted to strip said paper from said 5. In a duplicator, the combination with a frame having a bed, and a duplicating film thereon; of a carriage slidably mounted on said frame, a spring clamp movably secured to said frame adjacent oneend of said bed adapted to hold a sheet of paper or the like, a roller journaled in said carriage adapted to move over said bed and depress a sheet of paper or the like on to said duplicating film, and to pass beyond the end of said bed, thereby leaving a space between an end of said bed and said roller into which may be inserted the end of a sheet of paper or the like, and a second roller journaled in saidcarriage and adapted to strip said paper from said film.

6. In a duplicator, the combination with a frame having a bed, and a duplicating on said frame, a clamp movably secured to.

said frame adjacent one end of said bed, means adapted to depress said clamp upon a sheet of paper orthe like, a roller journaled in said carriage and adapted to move over said bed and depress a sheet of paper or the like on to said duplicating film, and to pass beyond the end of said bed, thereby leavinga space between an end of said bedand said roller into which may be inserted he end of a sheet of paper or the like, and a second roller journaled in said carriage 31111211 adapted to strip said paper from said 7 In a duplicator, the combination with a frame having a bed, and a duplicating film thereon; of a carriage slidably mo'unted on said frame, a clamp movably secured to said frame adjacent one end of saidbed adapted to'hold a sheet of paper or the like, a roller journaled in said carriage and adapted to move over said bed and depress a sheet of paper orfthelike on to said duplicating film and to pass beyond the end of said said bed, thereby leaving a space between anend of said bed and said roller into which may be inserted the end of a sheet of paper or the like: said roller being adapted to engage with and release said clamp when moved beyond the end ofthe bed; and a second roller journaled in said carriage and adapted to strip said paper from said 8. In a duplicator, the combination with a frame having a bed, and a duplicating film thereon; of a carriage slidably mounted on said frame, a spring clamp movably secured to said frame adjacent one end of said bed adapted to hold a sheet of paper or the like, aroller journaled'in said carriage adapted to move over said bed and depress a sheet of paper or the like on to said duplicating film and to pass beyond the end of said bed, thereby leaving a space between an end of said- ;bed and said roller into which may be inser'ted tlieaend of a sheet of paper or the like: said roller being adapted to engage with and release said clamp when moved beyond the end of said bed;'and a second roller journaled in said carriage and carriage, one of which rollers is adapted to move over said bed and depress a sheet of paper or the like on to said duplicating film and to pass beyond the end of said bed, thereby leaving aspace between an end of said bed and said roller into which may be inserted the end of a sheet of paper or the like, and another of which rollers is adapted to strip said paper from said duplicating film: said carriage being adapted to engage with and release said clamp.

10. In a duplicator, the combination with a frame having a bed, and a duplicating film thereon; of a carriage slidably mounted on said frame, a spring clamp movably secured to said frame adjacent an end of said bed adapted to hold a sheet of paper or the like, and a plurality of rollers journaled in said carriage, one of which rollers isadapted to move over said bed and depress a sheet of paper or the like on to said duplicating film and to pass beyond the end of said bed, thereby leaving a space between an end a of said bed and said roller into which may be inserted the end of a sheet of paper or the like, and another of which rollers is adapted to strip the same from said duplicating film: said carriage being adapted to engage with and release said clamp.

11. In a duplicator, the combination with a frame having a bed, and a duplicating film thereon; of a carriage slidably mounted on said frame, a clamp movably secured to said frame adjacent an end of said bed adapted to hold a sheet of paper or the like, means adapted to depress said clamp upon a sheet of paper or the like, and a plurality of vrollers journaled in said carriage, one of which rollers is adapted to move over said bed and depress a sheet of paperor the like on to said duplicating film and to pass beyond said bed at the end thereof, thereby leaving a space between an end of said bed and said roller into Which may be inserted the end of a sheet of paper or the like, and another of which rollers is adapted to strip the said paper from said duplicating film: said carriage being adapted to engage with and release said clamp;

12. In a duplicator, the combination with a frame having a bed, and a duplicating film thereon; of a carriage slidably mounted on said frame, a clamp movably secured to said frame adjacent one end of said bed adapted to holda sheetof paper or the like, means adapted to release said clamp from said paper, a roller journaled in said carriage masses an end of said bed and said roller into which may be inserted the end of a sheet of paper or the like, and a second roller journaled in said carriage and adapted to strip said paper from said film.

13. In a duplicator, the combination with a frame having a bed, and a duplicating film thereon; of a carriage slidably mounted on said frame, a clamp fast upon a shaft journaled in said frame adjacent one end of said bed, means adapted to depress said clamp upon'a sheet of paper or the like, means adapted to release said clamp comprising a pin on said clamp shaft and a finger on said movable carriage, a roller journaled in said carriage adapted to move over said bed and depress a sheet of paper or the like on to said duplicating film, and to pass beyond the end of said bed, thereby leaving a space between an end of said bed and said roller into which may be inserted the end of a sheet of paper or the like, and a second roller journaled in said carriage and adapted to strip said paper from said film.

14. In a duplicator, the combination with a frame having a bed, and a duplicating film thereon; of a carriage slidably mounted on said frame, a clamp pivotally secured to said frame adjacent one end of said bed adapted to hold a sheet of paper or the like, a roller journaled in said carriage adapted to move over said bed and depress a sheet of paper or the like on to said duplicating medium, and to pass beyond the end of said bed, thereby leaving a space between an end of said bed and said roller into which may be inserted the end of a sheet of paper or the like: said movable carriage being provided with a finger adapted to engage with 1 and release said clamp, and a second roller journaled in said carriage and adapted to strip said paper from said film.

In witness whereof We have hereunto signed our names this second day of April, 1915.

'rnnononn .DANHEISER. FREDERICK FRANCIS rEoHER. 

